Pen and nib and method of producing same



Jan. 1 1 1927.

J. C. WAHL PEN AND NIB AND METHOD OF PRODUCING SAME Filed June 11, 1924 Patented 11, 1 927.

UNIT-ED: :S'T'ATES PATENT: OFFICE.

' JOHN Wanner cincno'o, rarlmors, n s sranon .ro ran Winn. comrnmr, or

'- cmcae -mmors'a CORPORATION on DELAWARE.

ran in 1m: AND nn'rnon or rnonucmq sum.

The present invention relates to the manufacture of pens and the nibs thereof and the method of making the same.

I In pens having nibs provided with smooth ink a'dherin V ngk or clinging "surfaces, the amount of i adhering or clinging to the nibs is limited if the disadvantage of drops ofthe ink falling from the nib is to be avoided; FrequentIywhen a pen is resting on its side the ink on the nib'will flow to the lower edge of the nib not remaining suflicientl the ink holding surface 0 the accumulating and dropping off of distributed over the nib to prevent ink from the edge of the nib. If the flow of'the ink to the nib point be too free,

the ink will drop from the point and form blots. When the flow is regulated to prewhat high.

1 b may be maintained; to provide a The presentinvention ainis to eliminate these disadvantages and has among its. objects the rovision of a nib with a surface capable o holding a large quantity of ink in more or the ink accumulating and dropping from the sides or the point of the nib, yet permitting a free flow of the ink to "the point in accordance with the demand imposed thereon; to provide such nibwith preferably a smooth ink supplying or flow surface portion and roughened ink holding or clinging surface portions, preferably on the inner surface of the body portion tudinal strip in the central art of the inner surface of the, nib and lea ing to, the of the nib and the roughened portion eing preferably the adjacent side area --of the in'' ner surface of the nib; to provide a pen with such a nib and a feed engaging the nib whereby the relation of the nib and the feed. feed with or without a roughened surface which may engage more or less intimately with the inner surface of the nib, preferably adjacent the smooth central portion and-upon the roughened areas; to rovide for a novel process of making 11 mb, as 'by providing a and drop off, the ink thev the

ink will" flow to the point at a greater rate than demanded by the speed of writing and then, require careless distributed extent without portion .or area 7 of the nib, the: smooth portion being preferably a longi-.

int

Application and lime 11, 19244 Serial 110.110.1255.

smooth ink supplying surface portion and roughening adjacent or lateral surface portions for holding the ink; to roughen such surface portions by preferably sand blastmg or the like; toprovide for treating,. referably b heating, the niband the fee for 00' preferab ycausing the same to intimately fit together, particularly the parts of the feed ttingwith and into the irregularities or inequalities of the roughenedsurface of the nib to provide, whether or not usin a roughened nib, for .rou'ghening the fee a device, for aidin in distributing and holdmg the ink; a such other and further ob ects, advantages and capabilities as will later more fully appear and are inherently 7 possessed by the invention. Referrmgto the drawing illustrating the nvention, Fig. 1 is a view partly insection of a pen embodying the invention; Figs. 2

'and 3 are views of the opposite sides of the nib and, Fig. 4 is a transverse sectional view takenon line 4-4 of Fig: 1 of the drawings.

Referring now more particularly to the drawing, Fig. 1 shows'a pen having a barrel 1 to an end of which is secured a section 2, preferably by screw threads The section 1s rovided with a longitudinal bore in wh1ch fits a feed 6 and a nib 7, the feed b'ero'vided with an 'inflow channel 8 of ing' p) suita le form. The section has an inner extension4 to which is secured, in any suitable manner, 11 end of an ink sac 5.

v The nib has a writing point 9 and a body portion 10, the inner surface .of which .with a central narrow surface 11 'which is smooth'and leads to the point 9, the inner surface of the point 9 being preferably also smooth. At the is provided sides of and adjacent the central portion 11 05 the inner surface of the nib is formed with roughened surfaces 12, such 'roughening being preferably made by sand blasting "or-by other suitable methods so as to provide irregularities or inequalities in such surface areas 1 or portions as clearly shown in Fig. '3 of the drawing.

The nib in given relation,

and the feed areplaced together by preferably locating the 1 side portions 13 of the feed at the sides-of the central strip 11 sothat the channel 8 will be opposite the. smooth surface ortion 11 and with the slde portions 13 aring upon or intimately engaging with the adjacent roughened surface portion 12 as clearly shown in Fig. 4 of the drawing. With the nib and feed placed together, as above indicated, they may then be inserted in the bore of the section as shown in Fig. 1 of the drawmg. or intimately with the nib so as to prevent relative movement of one with respect to the other, the nib and the feed may be treated, as by heating, so that the contacting portions of the feed with the nib Will. set with the irregularities or inequalities of the rouglr ened surface portions v12 of the nib. The two members will then be held closely together so that the nib will not slide with respect to the feed. Whether or not the nib be roughened, the feed may be roughened on the surface engaging with the nib so as to aid in holding and distributing the ink and the engaging portion of the feed and the nibmay be such as to provide a more or less ink holding space.

By roughening the inside surface of the nib or the feed, or both, a greater quantity of ink may be held upon the nib without danger of the ink dropping from the nib, or even the feed, and thus causing blots. If the pen be rested on its side, the ink will not flow to the lower edge of the nib and fall upon the paper and make blots. The roughened surface portions of the nib have the faculty of distributing, or holding the ink distributed, over an extensive area, the irregularities or. inequalities of the roughened surface acting by capillarity. The central smooth portion 11 is provided for giving a smooth path or free supply of the ink from the barrel to the point of the nib where there is a rapid writing or other great demand made upon the pen. The roughened portions 12 being located at the sides of the smooth path will permit the lateral spreading of the ink so as to hold a great quantity of ink on the pen and thus prevent the collecting of the ink at the sides of the pen, yet aids in the supply and feeding of the ink alongthe smooth portion 11 and in the channel 8 of the feed. Thus, the

central smooth strip-portion results in providing a continuous supply of 1nkto the point of the nib while the roughened portions on'either side of the strip rovide means to prevent the ink from ove owing and overfilling the natural reservoirs of the feed itself. Great care in adjusting and -manufacturing the feed is not requlred since the roughened surfaces of the nib or feed. or

both readily compensate for variations in manufacture and assembly by causing the:

ink-to cling or adhere to the nib, or feed, or

both, more eifici'entlythan upon such. having a. smooth surface or surfaces, while yetpermitting as free a flow of ink to the point of the penas if the nibgwere totally smooth.

If it be desired that the feed fit clo:ely 7 when the same is required.

While I have herein described an embodiment and process of making such pen and nib, it is to be understood that the invention is not limited to the particular construction, arrangement of parts and details, or the steps described and shown, but that it comprehends other constructions, arrangements of parts and details and steps Without departing from the spirit thereof.

Having thus described my invention, I claim:.

1. In a pen, a nib having a point and a body portion, the inner surface of the body portion being provided with a longitudinal smooth strip for supplying ink to the point, and roughenedsurface portions at the sides of said strip for increasing the ink holding capacity of said nib. I

2. In a pen, a nib havin a point and a body" portion, the inner sur ace of the body portion being provided with a central longitudinal smooth surface portion for supplying ink to the point, and roughened surface portions at the sides of said smooth portion for increasing the ink holding capacity of said nib.

3. In a pen, a nib havin a point and a body portion, the inner surface of the body portion being provided with a central smooth strip for the free flow of ink to the .point, and the remainder of the inner surface of the nib on either side of the strip being provided with roughened areas for preventing the overflowing of the ink.

- 4. A pen comprising a holder and a nib, said holder having a feed provided with a channel for the feed of ink therethrough, said nib having a smooth surface portion opposite the channel of the feed and roughened surface portions at the sides of said smooth surface portions.

5. A pen comprising a holder, a feed provided with a feed channel, and a/ nib having a central longitudinal smooth strip on its inner surface and having roug'henedportions intimately'engaged with the surface of said feed.

6. A pen comprisin a holder, a feed having a channel for t e feed of ink there- Inn through, and a; nib having a smooth central 1 ,to increase the ink holding function 0 the pen. I,

7; The method of assembling a feedbar having a feed channel and a pen having a roughened inner surface with a smooth central strip therethrough which consists of positioning said pen on said feed bar with said strip opposite said channel and'causingthe intimate engagement of said bar and said pen by applying heat to said bar.

8. The method of assembling a feed bar having a feed channel and a pen having a roughened inner surface with a .smooth longitudinal central strip therethrough which consists of softening the surface. of 

